<template>
	<div>
		<!-- 面包屑导航区域 -->
		<el-breadcrumb separator="/">
			<el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
			<el-breadcrumb-item>用户管理</el-breadcrumb-item>
			<el-breadcrumb-item>用户列表</el-breadcrumb-item>
		</el-breadcrumb>

		<!-- 卡片视图区域 -->
		<el-card>
			<!--搜索与添加区域-->
			<el-row :gutter="20">
				<el-col :span="8">
					<el-input placeholder="请输入内容" v-model="queryInfo.query">
						<el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
					</el-input>
				</el-col>
				<el-col :span="4">
					<el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
				</el-col>
			</el-row>

			<!-- 用户列表区域 -->
			<el-table :data="userlist" border stripe>
				<el-table-column type="index"></el-table-column>
				<el-table-column label="姓名" prop="username"></el-table-column>
				<el-table-column label="邮箱" prop="email"></el-table-column>
				<el-table-column label="电话" prop="mobile"></el-table-column>
				<el-table-column label="角色" prop="role_name"></el-table-column>
				<el-table-column label="状态" prop="mg_state">
					<template slot-scope="scope">
						<el-switch v-model="scope.row.mg_state" @change="userStatechanged(scope.row)">
						</el-switch>
					</template>
				</el-table-column>
				<el-table-column label="操作" width="180px">
					<template slot-scope="scope">
						<!-- 修改按钮 -->
						<el-tooltip content="编辑" placement="top" effect="dark" :enterable="false">
							<el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
						</el-tooltip>
						<!-- 删除按钮 -->
						<el-tooltip content="删除" placement="top" effect="dark" :enterable="false">
							<el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
						</el-tooltip>
						<!-- 分配角色按钮 -->
						<el-tooltip content="分配角色" placement="top" effect="dark" :enterable="false">
							<el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
						</el-tooltip>
					</template>
				</el-table-column>
			</el-table>
			<!-- 分页区域 -->
			<el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum"
			:page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper" :total="total">
			</el-pagination>
		</el-card>

		<!-- 添加用户对话框 -->
		<el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
			<!--内容主题区域-->
			<el-form :model="addForm" :rules="addFormRules" label-width="70px" ref="addFormRef">
				<el-form-item label="用户名" prop="username">
					<el-input v-model="addForm.username"></el-input>
				</el-form-item>
				<el-form-item label="密码" prop="password">
					<el-input v-model="addForm.password"></el-input>
				</el-form-item>
				<el-form-item label="邮箱" prop="email">
					<el-input v-model="addForm.email"></el-input>
				</el-form-item>
				<el-form-item label="手机" prop="mobile">
					<el-input v-model="addForm.mobile"></el-input>
				</el-form-item>
			</el-form>
			<!--底部区域-->
			<span slot="footer" class="dialog-footer">
				<el-button @click="addDialogVisible = false">取 消</el-button>
				<el-button type="primary" @click="addUser">确 定</el-button>
			</span>
		</el-dialog>

		<!-- 修改用户的对话框 -->
		<el-dialog title="修改用户信息" :visible.sync="editdialogVisible" width="50%" @close="editDialogClosed">
			<span>
				<el-form :model="editForm" :rules="editFormRules" label-width="70px" ref="editFormRef">
					<el-form-item label="用户名">
						<el-input v-model="editForm.username" disabled></el-input>
					</el-form-item>
					<el-form-item label="邮箱" prop="email">
						<el-input v-model="editForm.email"></el-input>
					</el-form-item>
					<el-form-item label="手机" prop="mobile">
						<el-input v-model="editForm.mobile"></el-input>
					</el-form-item>
				</el-form>
			</span>
			<span slot="footer" class="dialog-footer">
				<el-button @click="editdialogVisible = false">取 消</el-button>
				<el-button type="primary" @click="editUserInfo">确 定</el-button>
			</span>
		</el-dialog>

		<!-- 分配角色的对话框 -->
		<el-dialog title="分配角色" :visible.sync="setRolesdialogVisible" width="50%"
		@close="setRoleDialogClosed">
			<div>
				<p>当前的用户：{{userInfo.username}}</p>
				<p>当前的角色：{{userInfo.role_name}}</p>
				<p>分配新角色：
					<el-select v-model="selectRoledId" placeholder="请选择">
						<el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id">
						</el-option>
					</el-select>
				</p>
			</div>
			<span slot="footer" class="dialog-footer">
				<el-button @click="setRolesdialogVisible = false">取 消</el-button>
				<el-button type="primary" @click="saveRoleInfo">确 定</el-button>
			</span>
		</el-dialog>
	</div>
</template>

<script>
	export default {
		data() {
			//验证邮箱的规则
			var checkEmail = (rule, value, cb) => {
				//验证邮箱的正则表达式
				const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/

				if (regEmail.test(value)) {
					//合法的邮箱
					return cb()
				} else {
					cb(new Error("请输入合法的邮箱"))
				}
			}

			//验证手机号的规则
			var checkMobile = (rule, value, cb) => {
				//验证手机号的正则表达式
				const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/

				if (regMobile.test(value)) {
					//合法的手机号
					return cb()
				}

				cb(new Error("请输入合法的手机号"))
			}

			return {
				//获取用户列表的参数对象
				queryInfo: {
					query: '',
					//当前的页数
					pagenum: 1,
					//当前每页显示多少条数据
					pagesize: 2,
				},
				userlist: [],
				total: 0,
				//控制添加用户对话框的显示与隐藏
				addDialogVisible: false,
				//添加用户的表单数据
				addForm: {
					username: '',
					password: '',
					email: '',
					mobile: ''
				},
				//添加表单的验证规则对象
				addFormRules: {
					username: [{
							required: true,
							message: '请输入用户名',
							trigger: 'blur'
						},
						{
							min: 3,
							max: 10,
							message: '用户名的长度在3~10个字符之间',
							trigger: 'blur'
						}
					],
					password: [{
							required: true,
							message: '请输入密码',
							trigger: 'blur'
						},
						{
							min: 6,
							max: 15,
							message: '密码的长度在6~15个字符之间',
							trigger: 'blur'
						}
					],
					email: [{
						required: true,
						message: '请输入邮箱',
						trigger: 'blur'
					}, {
						validator: checkEmail,
						trigger: 'blur'
					}],
					mobile: [{
							required: true,
							message: '请输入手机号',
							trigger: 'blur'
						},
						{
							validator: checkMobile,
							trigger: 'blur'
						}
					]
				},
				//控制修改用户对话框的显示与隐藏
				editdialogVisible: false,
				//查询到的用户信息对象
				editForm: {},
				//验证修改用户的验证规则对象
				editFormRules: {
					email: [{
							required: true,
							message: '请输入用户邮箱',
							trigger: 'blur'
						},
						{
							validator: checkEmail,
							trigger: 'blur'
						}
					],
					mobile: [{
							required: true,
							message: '请输入手机号',
							trigger: 'blur'
						},
						{
							validator: checkMobile,
							trigger: 'blur'
						}
					],

				},
				//控制分配角色对话框的显示与隐藏
				setRolesdialogVisible: false,
				//需要被分配角色的用户信息
				userInfo: [],
				//所有角色的数据列表
				rolesList: [],
				//已选中的角色id值
				selectRoledId: ''
			}
		},
		created() {
			this.getUserList()
		},
		methods: {
			async getUserList() {
				const {
					data: res
				} = await this.$http.get('users', {
					params: this.queryInfo
				})
				if (res.meta.status != 200)
					return this.$message.error("获取用户列表失败！")
				this.userlist = res.data.users
				this.total = res.data.total
				//console.log(res)
			},
			//监听pagesize改变的事件
			handleSizeChange(newSize) {
				//console.log(newSize)
				this.queryInfo.pagesize = newSize
				this.getUserList()
			},
			//监听页码值改变的事件
			handleCurrentChange(newPage) {
				//console.log(newPage)
				this.queryInfo.pagenum = newPage
				this.getUserList()
			},
			//监听 switch 开关状态的改变
			async userStatechanged(userinfo) {
				//console.log(userinfo)
				const {
					data: res
				} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
				if (res.meta.status != 200) {
					userinfo.mg_state != userinfo.mg_state
					return this.$message.error("更新用户状态失败！")
				}
				this.$message.success("更新用户状态成功！")
			},
			//监听添加用户对话框的关闭事件
			//可以重置
			addDialogClosed() {
				this.$refs.addFormRef.resetFields()
			},
			//点击按钮， 添加新用户
			addUser() {
				this.$refs.addFormRef.validate(async valid => {
					if (!valid) return
					//可以发起添加用户的网络请求
					const {
						data: res
					} = await this.$http.post('users', this.addForm)

					if (res.meta.status != 201) {
						this.$message.error("添加用户失败！")
					}

					this.$message.success("添加用户成功！")
					//隐藏添加用户的对话框
					this.addDialogVisible = false
					//重新获取用户数据列表
					this.getUserList()
				})
			},
			//展示编辑用户的对话框
			async showEditDialog(id) {
				const {
					data: res
				} = await this.$http.get('users/' + id)
				if (res.meta.status != 200) {
					return this.$message.error("查询用户信息失败！")
				}

				this.editForm = res.data
				this.editdialogVisible = true
			},
			//监听修改用户对话框的关闭事件
			editDialogClosed() {
				this.$refs.editFormRef.resetFields()
			},
			//修改用户信息并提交
			editUserInfo() {
				this.$refs.editFormRef.validate(async valid => {
					if (!valid) return
					//发起修改用户信息的数据请求
					const {
						data: res
					} = await this.$http.put('users/' + this.editForm.id, {
						email: this.editForm.email,
						mobile: this.editForm.mobile
					})

					if (res.meta.status != 200) {
						return this.$message.error("更新用户失败！")
					}
					//关闭对话框
					this.editdialogVisible = false
					//刷新列表
					this.getUserList()
					//提示修改成功
					this.$message.success("更新用户信息成功！")
				})
			},
			//根据用户id删除相应的用户信息
			async removeUserById(id) {
				//弹框询问用户是否删除数据
				const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
					confirmButtonText: '确定',
					cancelButtonText: '取消',
					type: 'warning'
				}).catch(err => err)


				//如果用户确定删除，则返回值为字符串confirm
				//如果用户取消删除，则返回值为字符串cancel
				//console.log(confirmResult)
				if (confirmResult != 'confirm') {
					return this.$message.info("已取消删除")
				}

				const {
					data: res
				} = await this.$http.delete('users/' + id)
				if (res.meta.status != 200) {
					return this.$message.error("删除用户失败！")
				}
				this.$message.success("删除用户成功！")
				this.getUserList()
			},
            //展示分配角色的对话框
			async setRole(userInfo) {
				this.userInfo = userInfo

				//在展示对话框之前获取所有角色列表
				const {
					data: res
				} = await this.$http.get('roles')
				if (res.meta.status != 200) {
					return this.$message.error("获取角色列表失败！")
				}
				this.rolesList = res.data

				this.setRolesdialogVisible = true
			},
			//点击按钮，分配角色
			async saveRoleInfo() {
				if(!this.selectRoledId) {
					return this.$message.error("请选择要分配角色！")
				}
				
				const{data: res} = await this.$http.put(`users/${this.userInfo.id}/role`, {
					rid: this.selectRoledId
				})
				
				if(res.meta.status != 200){
					return this.$message.error("更新角色失败！")
				}
				this.$message.success("更新角色成功！")
				this.getUserList()
				this.setRolesdialogVisible = false
			},
			//监听分配角色对话框的关闭事件
			setRoleDialogClosed() {
				this.selectRoledId = ''
				this.userInfo = ''
			}
		}

	}
</script>

<style lang="less" scoped>

</style>
